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Out-of-bounds Read vulnerability in Apache Fory C++ deserialization. (CVE-2026-71560)

0
Critical
Published: 08/07/2026 (08/07/2026, 12:32:01 UTC)
Source: GCVE Database

Description

Out-of-bounds Read vulnerability in Apache Fory C++ deserialization. This issue affects Apache Fory C++ versions from 0.14.0 before 1.5.0 when deserializing structs containing tagged integer fields. A crafted input payload may trigger an out-of-bounds heap read in the tagged integer fast-path deserializer, potentially causing information disclosure or denial of service. Users are recommended to upgrade to Apache Fory 1.5.0, which fixes this issue. Applications that do not use Apache Fory C++ or do not use tagged integer fields are not affected.

CVSS v3.1

Score 9.1critical

Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
High
Availability
High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H

Affected software

GitHub Actionsmore threats →ai
apache/fory
pkg:github/apache/fory
Affected versions
>=0.14.0 <1.5.0

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AI-Powered Analysis

Machine-generated threat intelligence

AILast updated: 08/07/2026, 15:29:30 UTC

Technical Analysis

CVE-2026-71560 is an out-of-bounds read vulnerability in the Apache Fory C++ library during deserialization of structs with tagged integer fields. Versions from 0.14.0 before 1.5.0 are affected. A crafted input payload can trigger an out-of-bounds heap read in the tagged integer fast-path deserializer, which may cause information disclosure or denial of service. The vulnerability is addressed by upgrading to Apache Fory 1.5.0.

Potential Impact

Exploitation of this vulnerability can lead to information disclosure or denial of service due to out-of-bounds heap reads during deserialization. This impacts applications using vulnerable versions of Apache Fory C++ that deserialize tagged integer fields. Systems not using tagged integer fields or not using Apache Fory C++ are not impacted.

Mitigation Recommendations

Users should upgrade to Apache Fory version 1.5.0 or later, where this vulnerability is fixed. Applications that do not use Apache Fory C++ or do not deserialize tagged integer fields are not affected and require no action.

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Technical Details

Gcve Source
db.gcve.eu
Osv Id
GHSA-r6vj-r3jc-f9gp
Osv Schema Version
1.4.0
Aliases
["CVE-2026-71560"]
State
PUBLISHED

Threat ID: 6a75f70cbf8831d53984f565

Added to database: 08/07/2026, 15:17:32 UTC

Last enriched: 08/07/2026, 15:29:30 UTC

Last updated: 09/21/2026, 22:01:37 UTC

Views: 47

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